'Prophecy' in the Bible

to another the exercise of miraculous powers; to another the gift of prophecy; to another the power of discriminating between prophetic utterances; to another varieties of the gift of 'tongues;' to another the interpretation of tongues.

If I possess the gift of prophecy and am versed in all mysteries and all knowledge, and have such absolute faith that I can remove mountains, but am destitute of Love, I am nothing.

But, brethren, as things are, if I come to you speaking in 'tongues,' what benefit shall I confer on you, if the utterance is neither in the form of a revelation nor of additional knowledge nor of prophecy nor of teaching?

This shows that the gift of tongues is intended as a sign not to those who believe but to unbelievers, but prophecy is intended not for unbelievers but for those who believe.